MS-LS1-3
Use argument supported by evidence for how the body is a system of interacting subsystems composed of groups of cells.
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AnimalsLa nutria soporta el frío, sin un cuerpo grande ni capa de grasa
Al mamífero más pequeño del mar no le es fácil mantenerse caliente. Ahora, los científicos han descubierto cómo sus células responden al desafío.
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AnimalsA new drug mix helps frogs regrow amputated legs
The treatment helped frogs grow working limbs useful for swimming, standing and kicking. It’ll be a while before people can do that.
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AnimalsSee the world through a jumping spider’s eyes — and other senses
Scientists are teasing out the many ways the spiders’ vision, listening and taste senses differ from ours
By Betsy Mason -
AnimalsLiving mysteries: Why teeny-weeny tardigrades are tough as nails
Tardigrades often live in cool, damp moss. Their cushy life has somehow prepared them to survive the lethal radiation of outer space.
By Douglas Fox -
LifeIn blazing heat, some plants open leaf pores — and risk death
When heat waves and droughts collide, water is precious. Some thirsty plants try to cool off by opening tiny pores — only to lose water even faster.
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AnimalsLet’s learn about snot
For humans, snot plays a key role in fighting off diseases. Other animals have found different uses for the slimy stuff.
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ClimateSecret forest fungi partner with plants — and help the climate
Forest fungi are far more than mere mushrooms. They explore. They move nutrients and messages between plants. They can even help fight climate change.
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PlantsScientists Say: Phloem
Phloem is tissue that delivers food, made in leaves during photosynthesis, to the rest of a plant.
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GeneticsExplainer: What is RNA?
A partner to DNA, cells use this molecule to translate the instructions for making all of the many proteins that your body needs to function.
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LifeWell-known wildflower turns out to be a secret meat-eater
Look closely at Triantha occidentalis, and you’ll see gluey hairs — and a trail of insect corpses on its stem.
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Health & MedicineScientists Say: Tonsils
The tonsils are pads of tissue in the throat that are part of the body’s immune system.
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TechSynthetic trees could tap underground water in arid areas
They also could also help coastal residents mine fresh water from salty sources.
By Sid Perkins